Figure 3-9. Group Setting
Fault Detection
The LP5860 continually detects the status for every LED dot. Once an open or short failure is detected, the fault
status is also be monitored on the GUI. Clicking the warning bar near an abnormal LED shows the fault details,
as illustrated in
. Clicking the fault summary at the right-top of the GUI shows the summary for all
Clear Short LED
and
Clear open LED
buttons are used to clear related fault
flags when the failures are removed.
To have precise detection results, the current for every LED dot must be set above 0.5 mA and the PWM must
be set above 25%, due to the parasitic capacitor induced from the LED matrix. A current that is too small leads
to abnormal LSD results.
Figure 3-10. Single Fault Alarm
Graphical User Interface (GUI) Guidance
SNVU762 – MAY 2021
LP5860 Evaluation Module
9
Copyright © 2021 Texas Instruments Incorporated